2020 Hyundai Santa FE Electrical system Problems

“Brake has been sticking last couple of weeks so that I had to pump brake to release to start. This morning I went out to the driveway and could not get into car with either remote or by using blue link on my phone. I used the manual key but could not release any other doors or lift gate. No lights, hazards, radio no nothing. I have had a few dead batteries and never had a car that dead overnight. I drove home from work previous night and I was outside after dark next to my car, no lights left on. …”

“Leased a 2020 Santa Fe on april 24, 2020 and on july 9, 2020 it stalled and all the lights on my dashboard lit up like a christmas tree and after 20 mins. Was able to start it. The dealer said nothing wrong. In august 2020 the car wouldn't start, after a road side assistance jump the dealer said I'm not starting it enough. In october same thing happened I got a new battery from the dealer. In december the same thing happened I got another new battery. They refuse to admit something is drawing power from the battery in the off position. Instead they say I'm not starting the car enough. …”

“My husband and I purchased this car brand new, with only 252 miles on it. On the third day of owning it we were driving and within 5 miles the car began alarming with the center driver console indicating the engine was overheated. The temperature gauge was in the red zone. After a few seconds it dropped slightly and fluctuated in the upper 2/3s of the high temperature region. We drove to the dealership, which was within 10 miles. Once we were within half a mile the car engine began rattling every-time I tried to accelerate and the temperature gauge at this point remained in the redline. …”

“With less than 1000 miles on the car, the horn stopped working intermittently. (the majority of the time it didn't.) the dealer kept the car for a week. The determination was that the driver air bag clockspring has internal malfunction . The paperwork shows that it was replaced. Yesterday, approximately three weeks after the repair, the horn failed to work again while driving on the highway. (based on past experience, speed doesn't seem to be a factor.)”

“New 2020 santafe took delivery on january 4th, 2021, with less than 5000 miles on march 21st the vehicle refuse to start after it was started and shut off while we were sitting in a parking lot. While attempting to start it getting forward collusion warning but the engine would not crank. Towed to the local dealer was told they cannot diagnose the car because they could not read the onboard computer, unable to say what's wrong. The car was towed back to the dealer where purchase and was told it was a blown fuse maybe lighting strike and other theories what's wrong. …”